Pith Number

pith:3QXZROZV

pith:2017:3QXZROZVVMMPIWYBKMGO5XNDHF

not attested not anchored not stored refs pending

An item response theory evaluation of the Light and Spectroscopy Concept Inventory national data set

Colin S. Wallace, Edward E. Prather, Timothy G. Chambers

arxiv:1709.05255 v2 · 2017-09-15 · physics.ed-ph · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3QXZROZVVMMPIWYBKMGO5XNDHF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:31:59.511062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc2f98bb35ab18f45b01530ceedda339642da08622d34b063d6fc6e8ebcdedce

Aliases

arxiv: 1709.05255 · arxiv_version: 1709.05255v2 · doi: 10.48550/arxiv.1709.05255 · pith_short_12: 3QXZROZVVMMP · pith_short_16: 3QXZROZVVMMPIWYB · pith_short_8: 3QXZROZV

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/3QXZROZVVMMPIWYBKMGO5XNDHF \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: dc2f98bb35ab18f45b01530ceedda339642da08622d34b063d6fc6e8ebcdedce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dcc5622c504dab4d171804a8f86abfaa70d5eeb98011ba1baed6f467fea9722",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2017-09-15T15:09:10Z",
    "title_canon_sha256": "fbac960068ff939d8f12be03f0d35a7e342c80a0ef2b27b72b2e70a1a8cdebcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05255",
    "kind": "arxiv",
    "version": 2
  }
}